Remove mainthread overhang painting code

Remove mainthread overhang painting code

The original intent was to make overhang painting code work for
slimming-paint, but finally found that the code is not being used.

BUG=476143
R=ccameron@chromium.org
TBR=chrishtr@chromium.org (passive changes under web/ and platform/)

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=194166

[Xianzhu, 2015-04-21 18:01:18]

wangxianzhu@chromium.org changed reviewers:
+ ccameron@chromium.org, chrishtr@chromium.org, rbyers@chromium.org

[ccameron, 2015-04-21 18:08:33]

lgtm

Was some of that code recently added? I remembered deleting everything that was
behind the RUBBER_BANDING flag back in https://codereview.chromium.org/977663002
...

[Xianzhu, 2015-04-21 18:13:07]

On 2015/04/21 18:08:33, ccameron wrote:
> lgtm
> 
> Was some of that code recently added? I remembered deleting everything that
was
> behind the RUBBER_BANDING flag back in
https://codereview.chromium.org/977663002
> ...

I guess the overhang painting code was not behind the RUBBER_BANDING flag so was
left.

[ccameron, 2015-04-21 18:18:18]

On 2015/04/21 18:13:07, Xianzhu wrote:
> On 2015/04/21 18:08:33, ccameron wrote:
> > lgtm
> > 
> > Was some of that code recently added? I remembered deleting everything that
> was
> > behind the RUBBER_BANDING flag back in
> https://codereview.chromium.org/977663002
> > ...
> 
> I guess the overhang painting code was not behind the RUBBER_BANDING flag so
was
> left.

/me hangs head in shame. Thanks for cleaning this up.

[Xianzhu, 2015-04-21 19:30:59]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2015-04-21 19:31:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1093383003/1

[commit-bot: I haz the power, 2015-04-21 19:41:43]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-04-21 19:41:44]

Try jobs failed on following builders:
  blink_presubmit on tryserver.blink (JOB_FAILED,
http://build.chromium.org/p/tryserver.blink/builders/blink_presubmit/builds/3...)

[Xianzhu, 2015-04-21 21:21:06]

The CQ bit was checked by wangxianzhu@chromium.org

[commit-bot: I haz the power, 2015-04-21 21:21:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1093383003/1

[commit-bot: I haz the power, 2015-04-21 21:25:56]

Committed patchset #1 (id:1) as
https://src.chromium.org/viewvc/blink?view=rev&revision=194166